The invention discloses a vehicle body stability control method and system based on a four-wheel independent drive electric vehicle, and the method comprises the following steps: (1), the electric vehicle is provided with a four-wheel independent motor, and the vehicle is provided with a sensor for monitoring the driving working condition of the vehicle; (2) in the running process of the vehicle, the running working condition of the vehicle is monitored through a sensor, and running data are collected in real time; (3) the vehicle body stability control module obtains the planned driving direction of a driver and the actual driving direction of the vehicle according to the wheel speed and the steering wheel angle; (4) the control module carries out logic judgment and sends an instruction; and (5) the vehicle body stability control module sends a braking instruction to a motor control unit, and the motor control unit carries out reaction torque braking on a motor; the system comprises a vehicle body stability control module and a motor control unit. According to the invention, the braking energy consumption can be reduced, the driving safety of the whole vehicle is improved, the energy recovery coverage rate is improved, and the cruising ability of the whole vehicle is improved.

    本发明公开了一种基于四轮独立驱动电动汽车的车身稳定控制方法和系统,所述方法包括以下步骤:(1)电动车辆配有四轮独立电机,车辆安装用于对车辆行驶工况进行监测的传感器;(2)车辆行驶过程中,通过传感器对车辆行驶工况进行监测,实时采集行驶数据;(3)车身稳定控制模块根据轮速和方向盘转角得到驾驶员计划行驶方向和车辆实际行驶方向;(4)控制模块进行逻辑判断并发出指令:(5)车身稳定控制模块将制动指令发给电机控制单元,电机控制单元对电机进行反扭矩制动;本发明所述的系统包括车身稳定控制模块和电机控制单元。本发明能够降低制动能量消耗,提高整车行驶安全性,提高能量回收覆盖率,进而提高整车续航能力。


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    Title :

    Vehicle body stability control method and system based on four-wheel independent drive electric vehicle


    Additional title:

    基于四轮独立驱动电动汽车的车身稳定控制方法和系统


    Contributors:
    QIAN CHUAN (author)

    Publication date :

    2021-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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